Card playing device



A. VON BABO CARD PLAYING DEVICE]Y Filed Aug. 19, 1944 Feb. 19, 1946.

2` Sheets-Sheet l ,www1 S.

Feb. 19, 1946. M. A. VON BAB@ 2395108@ l `CARD PLAYING DEVICE I Filed Aug.' 19, 1944 a sheets-sheet 2 I N VEN-TOR.

BY @ma y 72km,

ATTO/ME YS Patented Feb. 19, 1946 entre UNIT ED STATES- PATE NT O F F IC E a395,oss

CARaDfPLAYI-NG DEVCE Max A. Vonl Baba, Seattle, Wash.

Application'Angust 19, 1944', Serial` No. 550,280

Y 3 Claims.

invention relatesA t`o`= a` bridge playing device for use by. oneit'o. four persons,` and. is an. improvement on my coapending application, Serial No. 523,853, ledFebruary 25; 113.514.v and issued on even date-herewith.

. This invention provides a simpliiied coustruction over said mentioned application and its sen.- eral objects and results are similar.

More particularly, my invention relates to. a devicewhich will permit from one to. four persons to play the cards of a preselected deal and to check after the mentali selection of a cardl indicium as to Whether or not the play so selected by an individual player checks with that preselected by the expert preparing the particular deal in question.

It is a particular object of my invention ton provide a chart memberA bearing indicia thereon toV indicate a plurality of playing hands,.as four, each of Whichdisplays the cards in a hand during the various rounds of. play and also displays individually the` cards playedi during the rounds o1' play. It is a further object of the invention to provide movablemasking means so that,` dependingupon the `position of saidmaskingsmeans; the cards present in any one hand during the various rounds ofl play may be all maskedor consecutivelyexposedand atthe same` time with' the cards played during the various rounds" of play consecutively exposed and morev particularly with the card playedI duringa preceding round of play exposed with the, cards thenY ,remaining in the hand.

A further object of my invention is to provide a chart indicating in consecutive rowsthe cards remaining. in a' hand during consecutive rounds of play, which rows also: include th'ecard played during the preceding roundxof play.

It is-an object of. my invention to provide mov.V able masking meansr` cooperating with said chart permitting revealing in consecutive order the cards played during the. various rounds of play and` which will permit selective-exposureor masking` of the cards remaining in ahand during, the round'of play'subsequent to the round in which the revealed card was played.

It is a further object ofthe invention toprovide a means whereby the cards played during the rounds of play may be consecutively revealed, and with the cards remaining in a handv during the rounds of play selectively masked or consecutively revealed so that any. hand may contain the ultimate declarers hand; either of the ultimate. defenders"` hands, or the dummy hand. This permits educational" use of" the apparatus so that a han-d1 preparedtto illustratebidding may bear any relation to the ultimatel contractreached as: best illustrates the educational pointV or principle involved in a preselected hand. This is to be distinguished from many bridge'playing.

devices now on the market Where the construction thereof limits the possibility so that the station or hand indicated, as S, is normally the declarer. Obviously; if; a player Vknows, that be has been givena hand which will be. ultimately the declarer heis prewarnedto keep: the. bidding openy until somev contract is reached by his side.` Obviously, in playing. the bridge hand` any tip or Warning as to whois the na1 declarerospoils the bidding routine and' ini turn spoils the playing routineV as both bidding and playing. must essentially be performed from the'observation of only one hand plus such other legitimate. informa.- tionas the bids that havezbeen madefand seeing the dummy after the first. card has been played.

It isa primary object of my invention to provide a mechanical bridge-playingy device wherein the player obtains thelsame information that. he obtains in the playing` of an actual bridge game and the player can, after each play or after each bid; check his selectionk with that of the expert preparingA the particular deal involved-all with'- out givingthe player any more information than bevvould` obtain during the playing of a bridge hand and thus a truly educational device obtains;

It is a further object of my'invention toprovide a device so that if a hand` of a preselected deal is chosen to illustrate a principle either in offensive or defensive bidding, or in offensive or defensive playing, that a player can make his bid and conduct his play of theA cards on the same information which hewould get during-the bid'- dingor playing of an4 ordinary bridge hand. and then. he can immediately check his. bid`or play with that indicated as correct byrthe bridge expert preparing'the'hand; It is a further object of my invention to provide a device so that one playermay play-the cards from the same hand or'location, such as S position, and the cards may be located in the various hands sothat the cards of an offensive player or a defensive player may be selected by the expertfor the arbitrarily selected hand and the mechanical devices will permit play of all hands.

It isa further object of the invention to provide a device'v so thataplayer mayxselect tok play from any: hand. or location he. desiresl and the v mechanical devices willpermit play ofallhands.

The above mentioned general objects of'my-in.-

vention, together with others inherent in the same, are attained by the mechanism illustrated in the following drawings, the same being a preferred exemplary form of embodimentI of my invention, throughout which drawings like reference numerals indicate like parts:

Figure 1 is a plan view of a chart bearing indicia comprising card indicia of a selected deal which may be played by use of my apparatus;

Fig. 2 is a fragmentary plan view of a portion of one of the masking means shown in Fig. 4 of the drawin-gs, and showing in full lines the position of the masking slide o-f the masking means to mask and in dotted lines the position to reveal the cards remaining in a hand during a round of play;

Fig. 3 is a fragmentary sectional view with parts in elevation taken substantially on broken line 3 3 of Fig. 2;

Fig. 4 is a plan view of the completed apparatus with portions broken away and with the masking means of Fig. 2 in one position as respects players N and S and in another position as respects the players E and W to better illustrate the invention; and

Fig. 5 is a sectional View with portions broken away taken substantially on broken line 5-5 of Fig. 4.

Referring to chart I0 (shown separately in Fig. 1 of the drawings), a pre-arranged bridge deal of an ordinary deck of fifty-two cards and for four players is illustrated. However, it is to be understood that this inveniton is not limited to the ordinary deck of fifty-two cards nor to four playing hands. The players are represented respectively by the common terminology E, S, N, and W. By way vof illustration of a preselected deal, the hand or playing hand section, as W, displays the cards which, in accordance with the expert, should be Ain or remain in the hand of W during the rounds of play in consecutive and spaced apart rows II to 23 inclusive, such as rows one below the other on the chart I0. Also, the individual cards that are supposed to be played during the various rounds of play of the cards are displayed in said consecutive and spaced rows. Thus, by way of illustration 'the cards dealt to the player W will be in row I I. The cards remaining in the hand W during the second round of play will be displayed in the row I2, the cards remaining in the hand W during the third round of play will be displayed in the row I3, etc. The card to be played by W on the rst round of play is found in row I 2 and is the queen of clubs. The card to be played by W during the second round of play will be found in row I3 and is the 9 of diamonds. From the foregoing the cards remaining in a hand during any round of play and the card to be played during any round of play in the hand W will be apparent. Also, the construction is identical as to the other players E, N and S, and, in the interest of brevity,.is not described in detail. Thus when the ro-w II is exposed all that will appear is the cards that are dealt to a player, as W. When the row I2 is exposed in its entirety it will appear that the play W should have played the queen of clubs on the first round of play and that the cards remaining in the hand of the player W after playing the queen of clubs will be all cards dealt the player W except said queen of clubs. By the masking means 24, shown in plan in Fig. 2, all of the row I2 of each player, as W, may be exposed or only the portion thereof constituting the queen of clubs and the trick on which it is played may be exposed` Thus, if the hand W is that of an opponent the player will move the silde means as will be hereinafter more fully described so that only the trick and the card played, as the queen of clubs, will appear. While on the other hand if the hand W is either the hand being played or the dummy the player will permit the exposure of a complete row, such as row I2. The numerals II to 23 inclusive are used herein as reference numerals, and are only shown in connection with the player W. However, each of the players is provided with similar rows and such reference numerals will be applied to the obviously appropriate row in discussing the rows of the other players. Also, in a row, such as diagonal row 28, the numerals I to I3 appear for each player designating the tricks by number in which illustrated cards remain in the hands of the respective players. Likewise, a vertical row 21 of numerals I to I2 inclusive is provided for each player and the same indicates consecutively the trick in which certain cards are played by the respective players. Obviously, as the thirteenth play or trick will be the last card in a hand it need not be designated as such.

Referring to Figs. 2 to 5 inclusive, a masking means 24 is illustrated. This may be in the form of a rectangular flat member as a cardboard sheet provided with a sight opening 25 of a size to regisu ter with any one of the rows I I to 23 inclusive of a player as shown in Fig. 1. The sight opening 25 of the masking means 24 is preferably covered by a piece of transparent material 9, as cellophane, which holds together the parts of masking means 24 on opposite sides of opening 25, and is of a size to consecutively register with a row of the rows II to 23 inclusive. The masking means 24 is disposed on and mounted for relative movement as respects a playing hand section, as the section S, so that the masking means 24 Will consecutively reveal through sight opening 25 one of the rows I I to 23 inclusive. Each masking means 24 is provided with a masking slide 26 which is suitably supported for sliding movement on member 24 by guides 32 so that it may assume the full lline position shown in Fig. 2 or the dotted line position shown in Fig. 2. When the slide 25 is in the full line position shown in Fig. 2 it will reveal only the cards played during the consecutive rounds of play, and when said slide 26 is in the dotted line position it will reveal both the cards remaining in a hand during a round of play and the card played during the preceding round cf play. Thus, if the opening 25 is registered with a row, as I2 of player W,'it will reveal that the queen of clubs was played on the first round or' play and that the remaining cards in the second round of play are all the cards dealt the player W with the exception of said queen of clubs. In order to visibly indicate the above, a row of numbers 1 to 12 inclusive in a vertical column and indicated by reference numeral 21 is indicated to the left of the cards played in a playing hand section and the numbers 1 to 13 inclusive in a diagonal column are indicated by the reference numeral 28 to the left of the cards remaining in the hand during the various rounds of play.

In the foregoing, I have shown the card played on a round, such as the rst round, in the column with the cards remaining in the hand foi the second round and have also shown sight opening 25 as a. rectangular opening. However, if the card played during a preceding round i-s not in the same column as the cards remaining in a hand in a subsequent round,. then the shape of the opening 25 or two openings may be providedl to register with cards-remaining'in a hand during azroundd of play andi the .card .playing during: the preceding round;

Runners 8 mountfmasking` means 2'4ifor sliding movement. lforfreadyl m anipulation of; the'maskingmeans `Zillthere is indicatedaprojectingmeans 29 to move the means and thereby the opening 25 into consecutive registration with thezrows il to 23. inclusive.` Also, a. projecting meansxw. is provided for movingthe slide 26 between the full and dotted line positions shown in Fig.2 of the drawings.

In Fig: Llby Wayo'f ez'iample,` the masking'slide 2Biof the playerW has been moved so' thatonly the individual` cardsrplayed during any round ci play are visible through the sightl opening. 2:5; Also; themasking means 24 has been moved so that the sight opening- Zi thereofl is in'` registration with row l2'sothat' the card played during the rstf'roundoi play orthe queen of clubs is indicated. For purpose of illustration, the masking slide 2.6foi the player N has been moved soi that the cardsiiremaining in the hand after each play `and the card played during'the preceding round of playV are visible through sight opening 2510i masking'. means 24 andalso the masking means 24'h'asbeenmoved so` that sight opening 251 thereof is` inl registration with row Il or the cards dealt to the player N. Sofar as the player S: is concerned, as illustratedfinV Fig. 4, the slide' 2S of said player is in a position where theicardsres maining in a handandthecard' played during thepreceding roundare uncovered bythe sight openingA 25 and the masking meansv 24" of. the

player S has been. adjusted so that the sight opening 25 registers with the cards'. dealt* the player S, orv inotherwordsthe. row il. Also,i'n said Fig. 4 and asrespects the player E=zthe slide 26 has been moved to the position so that only individual cards played during the round off play will bevisib1e through the sight opening 25 of the masking meansid; Also, the maskingmeans 24 of theplayer lilVV has been adjusted in registration vwith row IZsothat'through the sight opening'25the1card played on the4 rstround of play1 isvisible' therethrough, which, in the presentextf ample, is the 7 of clubs;

As an illustrative means for providing relative k movementl between each masking. means 2lil and each playing hand section W; N, S,.andiE, I have shown a ilat cover member 3l (see'Figs 4 and'') provided with. openings registering with the vai.- ious playing hand sections and having; spaced runners 8 in which the masking means Zdmay bezslidably moved. In order to prevent movement between flat' member 3l and chart llilpreierably underside edge portions 3:3 of the member Ziif are foldedas indicated best in Fig; so that the` edges of one' or more charts` i0 maybe inserteditherein and thus Secured to the covermember Biz. if more than one chart ID is used then the top one may be played andV after playing, it may be removed and then the next played, etc.

Also, the cover member. 3l is provided with openings 6 and] in registration.respectively with thebidding column or row 3.4 onY theplaying chart Ill and the scoring column or rowy 35y of the-chart ID.- Inorder to consecutively expose the: bids of the bidding column 34,1; provide'. a slide 3Bslidably mounted by runner`31 and one of the runners BA (seeFigs. 4'and5) carriedby memberr 3I-.. Also, I` provide a slide memberf 3.8 to. permitconsecutive exposure of theeinforma.- tion on thescoring column or. rowf35. Suchslide 38 may bezmounted for suitableslidng mevement.

as-by. runner 39s` and` one of the: runners 8 (see Figs.-r 4 and').

Thalengths ofi theiour masking meansILare suchffthat` the samemaybe. moved'relative to each playing hand section to provide` theI masking actionhereinbefore described;v Also, four of the runnersa are each providedlwlthvastop means 40 so that upward movement. of each `masking' means 24-may be arrestedLby a projectionM carriedby eachmeans24 engaging means 40. andlin such positionsy a correct start will be insured' and the various information in the playing hand sec-v tionsisnotvexposed.to view through sight opening 25.

A row" 34 headedl byfBidsin Figs. 1 and li'is providedi on which are' indicated in successive rows: the vulnerability of thev players (NS, NVI EW,l NV), thedealer, the various bidsv made by thevarious players during the bidding, and the ultimate oontractholder (S): Thusfor theselected hand shown on chart lilithe player S- is the dealer;v and his first. bid is one in spades. Theplayer W passes, the playerV N bids three no trumpand the player E passes. The bidding con*- tinues until it:- isxascertained that the playerv S has obtained the contract Vof 6 in spades.` Mountiedonthe member 3| is a slidable mountedmaskinge member 36 as previouslyv described. This slide 36. preferably has a readily engageabletab on projection 42 so that; themask 3b.` mayxbe moved. to individually and consecutively expose the" various bids duringr the roundsoi: bidding; Also, the slide 38 for consecutivelyA revealing conditions obtaining during the play isalso ypreferably'provided with a tab or projection 43'. Also; the member 3 I` is. preferablyA provided. withl stops 44 and 45 for arresting upward movement. of

slidest36 andi38 and which functionA similarly to stops; 40r in indicating thatin the up position appropriate indicia are-.masked In operation of the device herein described as illustrating my invention, a chart lll'containing preselectedy hands will be'A disposed below the member 3l and with thegprintedmatterupward; TheI portionsS` of the` member 3l will function tolhold the chart ldrelatively non-movable.v as respectsthe member 3|.. Previouslythe masking meansA 24 over each of the playing hand sections have been moved upwardly until they haveen.- gaged stops 40 so that said masking means will cover the various playing handr sections.. Also; the slidesiy and-3s` have been moved upwardly against stops Ml and-i5 to mask respectivelythe bidding information and theA scoring information.-

In. disposing the cards in the various playing hand sections, E, S, N1, and` W, one hand such as. S` may be arbitrarily selected asA the hand which should be bidand played in the event of a single'player'so as to best illustrate a principle involved in a preselected hand; In my device a single player need notE play such hand aszS and can play any hand; However, if: the singleplayer decidesto play. thei hand' S,- he'l will move the masking slide.` 26 downwardly so that tl'iecorn.- plete; sightv opening 2,5 isavailable; Thereafter hewillmoveithe masking means 24 downwardly until the cards dealttsuchplayer S appear. This will bei. indicated by l' in diagonalV column 28. Thenrthe player willim'ove .the bid masking member: downwardlyA untilthe notation S DLR appears.`` which will indicate that the dealers handhaspbeen selected for the player S so that he will then, in.. accordance with the present standard rules of bridge, make his flrst'bid; After he has mentally or otherwise indicated his bid he can move the slide 36 downwardly and it will indicate that he did or should have bid one spade. Thus the player S can check his bid for accuracy with the bid indicated as accurate by the expert. Then the player S will move the slide 36 downwardly to indicate consecutively that W has passed, that N has bid 3 no trump, and that E has passed. Thereupon S will make the bid which he deems is correct and then check his bid with that of the expert by moving the slide 36 downwardly and he nds that he should or did bid 5 spades. At this stage it is important to recall that the player S is not necessarily the declarer, and the hand which may have been deposited at S may be either a defensive hand, a dummy hand, or a declarers hand. Thus S has no more preknowledge of the situation than he would have in playing ordinary bridge and he bids on his cards and not on any information such as ,knowing that he will be the declarer. Next, S will ascertain consecutively that W has passed, that N has bid six spades and E has passed. Thereupon he will select his proper bid and check the same and will nd that his bid is or should have been a passing bid. After uncovering the next bid which is that W has passed, the bidding is closed in accordance With the present rule of bridge regarding three consecutive pass bids and therefore S finds himself the declarer of a c'ontract of six in spades. Thereupon preferably the slide 36 is moved upwardly to cover the bidding information from view.

Now that S has discovered that he is the declarer of a contract of six in spades and that N is therefore the dummy and that E and W are the opponents, he moves the slide 26 of both E and W upwardly so that all that can be exposed through the sight opening of such hands E and W is the cards played during the various rounds of play. As to the dummy hand N, he moves the masking slide 26 downwardly so that the cards remaining in the hand during the various rounds of play as well as the card played during the previous round may be visible through the sight opening 25 ofthe masking means 24 of N. Thereupon the masking means 24 of the player W is moved downwardly so sight opening 25 registers with row I2 and it appears that W has made an opening leads of the queen of clubs. Thereupon the player moves the masking means 24 of the player N downwardly until the player can see the row I I of N or the hand dealt the dummy. Thereupon the player selects the card to be played from the dummy hand N and moves downwardly the masking means 24 of the player N and it will appear in row I2 that the card the player N should have played on the rst round is the two of clubs. It is important to note that as far as the information is available to the player S as he views the row II is concerned, it does not appear what card the player N should play on the first trick and it is necessary to move the masking means 24 of the player N downwardly so it may be checked as to what card should have been played on the first round. As to the player E the masking means 24 is moved downwardly into registration with row I2 and it appears that the player E has played the seven of clubs on the first trick. As to player E, the slide 2S is upward so that all that the player S is able to see so far as the hand of E is concerned is the card that E played on the trick. This of course follows the information commonly available in playing cards. To complete the first trick the player selects a card from S while row Il is visible and then reveals row I2 and checks and nds that the card preselected to be played on the rst trick is the king of clubs. After the completion of the first trick the slide 38 may be moved downwardly and it will indicate that S has the lead on the second trick and that N and S have taken one trick and that E and W have taken no tricks.

As S has taken the first trick he leads the second trick and determines the card he desires to play. After his own determination thereof he moves the masking means 24 downwardly so that the row I3 appears and he finds that he should have and may have played the eight of diamonds as the lead for the second trick. Thereafter the plays may be made for the various individual players following the routine previously described.

In the event that a single player should decide to play some hand other than S, such as W, he will start with the masking means 24 of each player up so that all information regarding playing hand sections is masked. Also, the slides 36 and 38 will be upward so that the information regarding bidding and tricks taken' will be masked. He will then move the masking slide 2?: and the masking means 24 over the hand W downwardly until he determines from row II the hand that is present for him to play. As he is playing the hand W and of course must see all of the cards of such hand he will move the masking slide 2S downwardly so that all of the cards dealt the player W may be exposed through the sight opening 25 of the masking means 24 over the hand W. After examining the hand which he has been dealt, he will move the bidding slide 36 downwardly and it will appear that the dealer is S for the particular hand involved. Thereupon he will movethe bidding slide 36 downwardly and nd that the player S has bid one spade and he will thereupon make his bid. After making his bid he can check with the bidding column and ascertain that he should have passed. Then the bidding slide 36 is moved downwardly to indicateconsecutively that N has bid 3 no trump, the partner E of W has passed, and S has bid ve spades. Thereupon W will make his bid and check and nd that he should have passed.

After the completion of the bidding and it is ascertained that S in the particular hand in question has obtained a contract for six spades, then the party playing the hand W will select a lead and then move the masking means 24 downwardly to expose the row I2 of the player of such hand and the player will ascertain that he should have played the queen of clubs. Then the slide 26 of the player N is moved downwardly to expose all of the cards in the hand of the dummy in accordance with usual practice. Immediately thereafter the masking means 24 of the 'player N is moved downwardly and it is determined from row I2 that the dummy played the deuce of clubs on the rst trick. As to the players E and S the slides 26 of each of said players are moved upwardly so only the cards that have been played will be visible. Then the masking means 24 of the players E and S are moved downwardly to determine in the respective rows I 2 of said players the plays which they have made on the rst trick. Thereafter the routine of playing will be obvious in View of the discussion heretofore made.

In the event that two or more players should each desire to play a hand by the use of my apparatus, such as a player at the station S and a player at the station W, then the players can move their masking slides 26 downwardly so aseaoes each player has selected a card to be played on any individual trick, he can then move his slide 2e upwardly and then move the masking means 24 downwardly and the card that should have been played by the player on any particular trick will appear through the sight opening 25, This will permit a player at a station to select a play and then expose the play of the expert preparing the hand.

I have provided all stations E, N, S and W with similar structures so that the greatest use of the apparatus may be had. Obviously, if a fixed position for player at S is employed, or a fixed dummy, as N, or other such limitations, then the structures of the various stations N, S, E and W would not need -to be the same and some of the parts could be obviously eliminated. For example, the masking slides 26 of a hand which is always to be the player or the dummy could be eliminated or the masking slides 26 of a hand which is always to be a non-player opponent could have the sliding feature eliminated.

It thus appears that I have provided a plurality of playing hand sections N, E, S, and W and that each section displays the cards in a hand during the various rounds of play in the rows Il to 23 inclusive. Also, it appears that the cards played during the various rounds of play are individually displayed in a column, as a vertical column, and that the cards remaining in a hand are aligned with the card played during the preceding round. When this alignment is provided by a column, I provide a rectangular sight opening 25 in the masking means 24. When the cards in a hand during a round of play and the card played during the preceding round are not in a column, the portion of the opening 25 which registers with a card played during the preceding round and the portion which registers with the cards remaining in the hand may be offset as respects each other, or I may provide two openings, Thus in either Way a sight opening may be caused to register with the cards in a hand during a round of play and with the card played during the preceding round of play.

Further, I have provided the masking slide 26 so that the cards remaining in a hand during the various rounds of play may be selectively masked by operation of the masking slide 26.

I have shown the masking means 24 with a sight opening 25 therein relatively movable as respects the chart I0 and by way of example thereof I have provided the cover member 3l which carries and supports the chart I0 by means of the edges 33 and then have provided runners 8 to mount the masking means 24 for sliding movement on the cover member 3|. AS a means for providing a masking member for a portion of the opening 25, I have illustrated a masking slide 26 slidably mounted on masking means 24.

Obviously, changes may be made in the form, dimensions, and arrangement of the parts of my invention, without departing from the principle thereof, the above setting forth only a preferred form of embodiment.

I claim:

l. A game educational apparatus comprising a chart member bearing indicia constituting a plurality of playing hand sections, each section displaying the cards in a hand during the rounds of play of the cards in consecutive and spaced apart rows and individually displaying the cards played during the rounds of play of the cards in consecutive and spaced apart other rows; masking means relatively movably mo-unted as respects said chart and with sight opening means registerable with the cards in a hand during a round of play and with the card played during the prel ceding round of play; and a second masking means movably mounted on said first mentioned masking means and movable into and out of masking relation as respects the cards in a hand during a round of play registering with said sight opening means.

A game educational apparatus comprising a chart member bearing indicia constituting a plurality of playing hand sections, each section displaying the cards in a hand during the rounds of play of the cards in consecutive and spaced apart rows and individually displaying the cards played during the rounds of play of the cards in consecutive and spaced apart other rows; cover means provided with chart engaging and retaining means, said cover means having sight openings registering with sad sections, whereby said cover means and said -chart member are relatively immovable; and masking means relatively movably mounted as respects the sight openings in said cover means, said masking means being provided with sight opening means registerable with the cards in a hand during a round of play and with the card played during the preceding round of play.

3. A game educational apparatus comprising a chart member bearing indicia constituting a plurality of playing hand sections, each section displaying the cards in a hand during the rounds of play of the cards in consecutive and spaced apart rows and individually displaying the cards `played during the rounds of play of the cards in consecutive and spaced apart other rows; masking means relatively movably mounted as respects saidchart and with sightd opening means registerable with the cards in a hand during a round of play and with the card played during the preceding Yround of play; and a second masking means movable into and out of masking relation as respects the sight opening of the rst masking means disposed over the cards in a hand during a round of play.

MAX A. VON BABO. 

